JPH10102890A - Latch structure of folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration in appearance due to the protrusion of a door from an upper rail and the tilting of the door at the time of closing. SOLUTION: A hinge body 2 for two doors 1, 1 is brought near and arranged to one end 1a side in the thickness direction D of the door 1. A latch fixture 6, to which a latch roller 5 is installed, is supported by the hinge body 2. The latch fixture 6 has a latch roller arm 7 for arranging the latch roller 5 to a section nearer to the central 1b side in the thickness direction D of the door 1 than the hinge body 2. The latch roller 5 and runners 4 are disposed on the central 1b side in the thickness direction D of the door 1 respectively. The latch roller 5 can be arranged on the central 1b side in the thickness direction D of the door 1 by the latch roller arm 7 mounted on the latch fixture 6 in spite of structure, in which the latch fixture 6 is supported to the hinge body 2 displaced and disposed from the center M of the door 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch structure for a folding door, and more particularly to a latch structure for a folding door which prevents the center of the door from being shifted from the center of the upper rail.

[0002]

2. Description of the Related Art Conventionally, two doors 1, 1 are connected to a hinge 2
8 to 11, for example, as shown in FIGS. 8 to 11, upper and lower rails 3
A pivot 9 is mounted on the runner 4 and the lower rail 8 so as to be freely movably supported, and a latch is provided at the upper end of the door 1 to prevent the door 1 from being opened by being snapped into the upper rail 3 when the door 1 is closed. A device equipped with rollers 5 is known. As shown in FIG. 12, the hinge body 2 is disposed close to one end 1a in the thickness direction D of the door 1 so that the door 1 can be folded. The latch roller 5 is supported via 6 '. FIG. 10
Reference numeral 6 'in FIG. 12 denotes a latch fitting which is fitted and supported on the upper portion of the hinge body 2 and to which the latch roller 5 is attached. Reference numeral 50 in FIG.

[0003]

Incidentally, in order to secure the closed state of the door 1, it is necessary to arrange the runner 4 and the latch roller 5 in a straight line, but conventionally, as shown in FIG. 1, the latch roller 5 is disposed right above the hinge body 2 disposed close to the one end 1 a side in the thickness direction D of the door 1. As a result, the runner 4 needs to be arranged closer to the one end 1a in the thickness direction D of the door 1. As a result, conventionally, the center M of the door 1 is
Of the door 1 (FIG. 11), the door 1 appears to protrude from the upper rail 3 when the door 1 is in the closed state, and the appearance of the door 1 in the closed state deteriorates. In addition, since the runner 4 is eccentric from the center M of the door 1, there is a problem that the door 1 itself, which is suspended from the upper rail 3 via the runner 4, tends to be inclined and the appearance is further deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above point, and has a structure in which a latch mounting member is supported on a hinge body which is arranged at a position deviated from the center of the door, but a latch roller is provided at the center of the door. An object of the present invention is to provide a latch structure of a folding door, in which a runner can be arranged, and the appearance of the door can be prevented from being deteriorated due to the door protruding from the upper rail or the inclination of the door when the door is closed.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a folding door A in which two doors 1, 1 are rotatably connected by a hinge body 2, and an upper rail 3 A latch structure for a folding door comprising a runner 4 supported movably and a latch roller 5 for preventing the door 1 from opening by being inserted into the upper rail 3 when the door 1 is closed. Numeral 2 is arranged to be closer to one end 1a side in the thickness direction D of the door 1, and a latch attachment 6 to which the latch roller 5 is attached is supported by the hinge body 2, and the latch attachment 6 connects the latch roller 5 to the hinge body. A latch roller arm 7 for disposing the latch roller 5 and the runner 4 on the center 1b side of the door 1 in the thickness direction D of the door 1 respectively. It is characterized by By doing so, the latch roller 6 is supported by the latch body 6 on the hinge body 2 which is disposed at a position deviated from the center M of the door 1, but the latch roller 5 is closed by the latch roller arm 7 provided on the latch fixture 6. 1 can be arranged on the center 1b side in the thickness direction D, and accordingly, the runner 4 can also be arranged on the center 1b side in the thickness direction D of the door 1, and the door 1 protrudes from the upper rail 3 at the time of closing. And the deterioration of the appearance due to the inclination of the door 1 can be prevented.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. As shown in FIG. 1, the folding door A of the present embodiment includes:
The two doors 1, 1 are rotatably connected by a hinge body 2. A runner 4 is attached to an upper end of the two doors 1 and 1 on the opposite side of the hinge body 2 via a runner attachment 12, and the runner 4 is hung on the upper rail 3 so as to run freely. ing. The runner fixture 12
Are fixed to the center of the door 1 in the thickness direction D, whereby each runner 4 is arranged at the center of the door 1 in the thickness direction D. It should be noted that the pivot projecting from the lower end of the door 1 is fitted to the lower rail so as to be able to run freely, as in the conventional case.

The hinge body 2 is arranged close to the one end 1a side of the door 1 in the thickness direction D. An example of the hinge body 2 is shown in FIGS. The hinge body 2 is formed of a long material having a substantially U-shaped cross section with side pieces 24 protruding on both sides of the center piece 23. Is provided. On the other hand, a hinge bearing portion 22 having a substantially J-shaped cross section is protrudingly provided at the opposite end portions of the two doors 1 and 1, and the hinge bearing portion 22 is rotatably fitted into the hinge shaft portion 21. The two doors 1, 1 are rotatably connected via a hinge body 2.

As shown in FIGS. 2 and 5, a notch 25 cut from the upper end is provided at the upper end of the center piece 23 of the hinge body 2, and the hinge shaft 21 and the hinge bearing are provided. The fitting 22 is performed below the notch 25, and the case 10 of the latch attachment 6 is fitted in the hinge body 2 corresponding to the notch 25.

As shown in FIG. 5, the case 10 of the latch attachment 6 is provided with a concave groove 19 which opens rearward and upward, and a sliding vertical portion communicating with the concave groove 19 is provided on the surface of the case 10. A groove 26 is provided, and a vertical notch 27 for receiving a part of the latch roller 5 is provided at the upper end of the surface of the case 10. A receiving member 20 (FIG. 2) is fitted in the concave groove 19 of the case 10, and the screw 11 is inserted from a slide vertical groove 26 provided on a surface portion of the case 10 into a hole provided in the receiving member 20. The receiving member 20 is screwed and fixed at an arbitrary position in the vertical direction in the concave groove 19 of the case 10. A coil spring 1 is provided on the upper surface side of the receiving member 20.
The bottom surface portion 12 of the latch roller arm 7 is arranged via 3, and the latch roller arm 7 is urged upward by a coil spring 13. Latch roller arm 7
As shown in FIG. 4, both side pieces 3
1 is erected and formed in a U-shape when viewed from the front. Reference numeral 51 in the drawing denotes a reinforcing piece. A bent portion 33 which is bent in a substantially rectangular shape when viewed from the side is provided at an upper portion of both side pieces 31. As shown in FIG. 3, the bent portion 33 is inclined so as to be directed upward toward the center N of the upper rail 3, and the latch roller 5 is rotatably mounted between upper ends of the bent portion 33. . The latch roller 5 is arranged at the center of the door 1 in the thickness direction D by the latch roller arm 7 having the bent portion 33.

However, when the two doors 1 and 1 are folded, the latch rollers 5 projecting from the upper end of the door 1 are disengaged from the upper rail 3 to be in an opened state (FIG. 7), and the door 1 is extended. At this time, the latch roller 5 is inserted into the upper rail 3 to be in a closed state (FIG. 6). Here, as shown in FIG. 1, the latch roller 5 is disposed at the center in the thickness direction D of the door 1 by a latch roller arm 7 provided on the latch attachment 6 and bent in a substantially rectangular shape. In addition, since the runner 4 and the latch roller 5 can be arranged in a straight line because the door 1 is arranged at the center in the thickness direction D, the closed state of the door 1 can be ensured. Therefore, the center M of the door 1 (FIG. 1) is adjusted to the center N of the upper rail 3 (FIG. 3), while the latch mounting member 6 is supported by the hinge body 2 arranged at a position shifted from the center M of the door 1. And the door 1 in the closed state does not protrude from the upper rail 3, and the runner 4 is positioned at the center M of the door 1.
, The door 1 itself suspended from the upper rail 3 via the runner 4 does not tilt, and as a result, the appearance of the door 1 in the closed state is improved.

Furthermore, since the latch roller 5 can be arranged at the center of the door 1 in the thickness direction D with a simple structure in which the latch roller arm 7 is bent in a dogleg shape, the conventional hinge body 2 and latch roller arm 7 can be disposed. The latch mounting fixture 6 can be used as it is, and the latch roller 5 is mounted between the upper ends of the latch roller arms 7 bent in a V-shape. 1a, and the runner 4 need only be displaced to the center of the door 1 in the thickness direction D, so that the appearance of the door 1 in the closed state can be improved more than before. Although it is possible, there is also an advantage that the attachment of the latch roller 5 and the runner 4 can be easily performed.

[0012]

As described above, according to the first aspect of the present invention, there is provided a runner supported on an upper rail so as to be able to run on an upper rail at the upper end of a folding door in which two doors are rotatably connected by a hinge body. It is a latch structure of a folding door in which a latch roller for preventing the door from opening by being inserted into the upper rail when the door is closed is provided, wherein the hinge body is arranged close to one end side in the thickness direction of the door. The hinge body supports a latch mount to which the latch roller is attached, and the latch mount includes a latch roller arm for arranging the latch roller closer to the center in the thickness direction of the door than the hinge body. By arranging the latch roller and the runner at the center in the thickness direction of the door, respectively, the latch mounting tool is supported by a hinge body that is arranged off the center of the door. The provided latching roller arm allows the latching roller to be located at the center in the thickness direction of the door, and accordingly the runner can also be located at the center in the thickness direction of the door. The door does not protrude from the upper rail, and since the runner is located at the center of the door, the door itself suspended from the upper rail via the runner may tilt. As a result, it is possible to prevent the door from protruding from the upper rail at the time of closing and to prevent the appearance from being deteriorated due to the inclination of the door.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view showing an example of an embodiment of the present invention.

FIG. 2 is a front view of the same latch attachment.

FIG. 3 is a side view of the same latch attachment.

FIGS. 4A and 4B are a side view and a front view of the same latch roller arm.

FIGS. 5 (a) and 5 (b) are explanatory diagrams of the up-down operation of the latch roller of the above.

FIG. 6 is an explanatory view of an extended state of the folding door.

FIG. 7 is an explanatory diagram of a folding state of the folding door.

FIG. 8 is an explanatory view of a conventional folding door in a folded state.

FIG. 9 is an explanatory view of a conventional folding door.

FIG. 10 is an explanatory view of a conventional latch attachment.

FIG. 11 is an explanatory diagram of a state of attachment of a conventional door.

FIG. 12 is a partially omitted plan view showing an arrangement state of a conventional latch roller and runner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 1a One end 1b Center 2 Hinge body 3 Upper rail 4 Runner 5 Latch roller 6 Latch mounting tool 7 Latch roller arm D Thickness direction

Claims (1)

[Claims] 1. A runner movably supported by an upper rail and a runner supported by the upper rail when the door is closed. A latch structure for folding doors, each of which is provided with a latch roller for preventing the roller from being opened, wherein the hinge body is arranged close to one end side in the thickness direction of the door, and a latch mounting tool to which the latch roller is attached by the hinge body is supported. The latch mounting tool includes a latch roller arm for arranging the latch roller at the center of the door in the thickness direction of the hinge body. The latch roller and the runner are arranged at the center of the door in the thickness direction, respectively. A latch structure for a folding door.